diff --git a/kindle2notion/exporting.py b/kindle2notion/exporting.py
index 25bee93..da4e5f9 100644
--- a/kindle2notion/exporting.py
+++ b/kindle2notion/exporting.py
@@ -4,7 +4,7 @@
 import notional
 from notional.blocks import Paragraph, TextObject
 from notional.query import TextCondition
-from notional.types import Date, ExternalFile, Number, RichText, Title
+from notional.types import Date, ExternalFile, Number, RichText, Title, DatabaseRef
 from requests import get
 
 # from notional.text import Annotations
@@ -119,7 +119,7 @@ def _add_book_to_notion(
     # Add a new book to the database
     if not title_exists:
         new_page = notion.pages.create(
-            parent=notion.databases.retrieve(notion_database_id),
+            parent=DatabaseRef(database_id=notion_database_id),
             properties={
                 "Title": Title[title],
                 "Author": RichText[author],
diff --git a/requirements.txt b/requirements.txt
index 0a6047a..a4b2693 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 click>=8.0.0
-notional>=0.4.1
+notional>=0.5.1
 pathlib
 dateparser>=1.0.0
-requests>=2.25.0
\ No newline at end of file
+requests>=2.25.0